Display rack



FIG. 1 is a front perspective view of a display rack showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front perspective view of an alternate embodiment thereof; and,

FIG. 4 is a side elevational view of the embodiment of FIG. 3. 

The ornamental design for a display rack, as shown and described. 